Finding the Fourth Proportional to 2,225.60, 3,336.72 and 1,071.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,225.60 : 3,336.72 = 1,071.04 : x
2. Step 2: Convert to fraction form
   2,225.60/3,336.72 = 1,071.04/x
3. Step 3: Cross multiply
   2,225.60x = 3,336.72 × 1,071.04
4. Step 4: Simplify right side
   2,225.60x = 3,573,760.59
5. Step 5: Solve for x
   x = 3,573,760.59/2,225.60
6. Step 6: Final answer
   x = 1,605.75